2004 Bryant 90Plus high efficiency LP gas furnace running in good condition. 16x25x4 air filter is new today. Clean flame sensor and check ignitor ohms. Flush condensation trap and drain lines. Run test unit in gas heating mode. Delta t of 46F with supply temp of 115F, spec Delta t of 30-60F. Blower and inducer motors tested good. System is operating properly, efficiently and ready for Winter.